Manning's Coefficient given Velocity of Flow Calculator

✖Hydraulic Radius, in fluid mechanics, is the cross-sectional area of an open channel or pipe divided by the wetted perimeter.ⓘ Hydraulic Radius [R_h]			+10% -10%
✖Hydraulic Gradient is a specific measurement of liquid pressure above a vertical datum.ⓘ Hydraulic Gradient [S]			+10% -10%
✖Flow Velocity refers to the speed at which a fluid, such as a liquid or gas, moves through a particular area within a given time.ⓘ Flow Velocity [v_f]			+10% -10%

✖Manning Coefficient is dimensionless and varies depending on the type of channel or surface through which water flows.ⓘ Manning's Coefficient given Velocity of Flow [n]

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Manning's Coefficient given Velocity of Flow Solution

STEP 0: Pre-Calculation Summary

Formula Used

Manning Coefficient = ((Hydraulic Radius^(2/3))*(Hydraulic Gradient^(1/2)))/Flow Velocity
n = ((R_h^(2/3))*(S^(1/2)))/v_f
This formula uses 4 Variables

Variables Used

Manning Coefficient - Manning Coefficient is dimensionless and varies depending on the type of channel or surface through which water flows.
Hydraulic Radius - (Measured in Meter) - Hydraulic Radius, in fluid mechanics, is the cross-sectional area of an open channel or pipe divided by the wetted perimeter.
Hydraulic Gradient - Hydraulic Gradient is a specific measurement of liquid pressure above a vertical datum.
Flow Velocity - (Measured in Meter per Second) - Flow Velocity refers to the speed at which a fluid, such as a liquid or gas, moves through a particular area within a given time.

STEP 1: Convert Input(s) to Base Unit

Hydraulic Radius: 0.1 Meter --> 0.1 Meter No Conversion Required
Hydraulic Gradient: 0.25 --> No Conversion Required
Flow Velocity: 11.96 Meter per Second --> 11.96 Meter per Second No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

n = ((R_h^(2/3))*(S^(1/2)))/v_f --> ((0.1^(2/3))*(0.25^(1/2)))/11.96

Evaluating ... ...

n = 0.00900683398842761

STEP 3: Convert Result to Output's Unit

0.00900683398842761 --> No Conversion Required

FINAL ANSWER

0.00900683398842761 ≈ 0.009007 <-- Manning Coefficient

(Calculation completed in 00.004 seconds)

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< Manning's Formula Calculators

Velocity of Flow in Pipe by Manning Formula

LaTeX Go Flow Velocity = (1/Manning Coefficient)*(Hydraulic Radius^(2/3))*(Hydraulic Gradient^(1/2))

Radius of Pipe given Velocity of Flow in Pipe by Manning Formula

LaTeX Go Hydraulic Radius = ((Flow Velocity*Manning Coefficient)/(Hydraulic Gradient^(1/2)))^(3/2)

Manning's Coefficient given Velocity of Flow

LaTeX Go Manning Coefficient = ((Hydraulic Radius^(2/3))*(Hydraulic Gradient^(1/2)))/Flow Velocity

Hydraulic Gradient given Velocity of Flow in Pipe by Manning Formula

LaTeX Go Hydraulic Gradient = ((Flow Velocity*Manning Coefficient)/(Hydraulic Radius^(2/3)))^2

Manning's Coefficient given Velocity of Flow Formula

LaTeX Go

Manning Coefficient = ((Hydraulic Radius^(2/3))*(Hydraulic Gradient^(1/2)))/Flow Velocity
n = ((R_h^(2/3))*(S^(1/2)))/v_f

What is Manning's Coefficient ?

Manning's coefficient is a measure of the roughness of a channel or conduit in hydraulic engineering, influencing the calculation of flow velocity in open channel flow equations.

How to Calculate Manning's Coefficient given Velocity of Flow?

Manning's Coefficient given Velocity of Flow calculator uses Manning Coefficient = ((Hydraulic Radius^(2/3))*(Hydraulic Gradient^(1/2)))/Flow Velocity to calculate the Manning Coefficient, The Manning's Coefficient given Velocity of Flow is defined as the value of Manning's coefficient when we have prior information of velocity of flow and other parameters used. Manning Coefficient is denoted by n symbol.

How to calculate Manning's Coefficient given Velocity of Flow using this online calculator? To use this online calculator for Manning's Coefficient given Velocity of Flow, enter Hydraulic Radius (R_h), Hydraulic Gradient (S) & Flow Velocity (v_f) and hit the calculate button. Here is how the Manning's Coefficient given Velocity of Flow calculation can be explained with given input values -> 0.009007 = ((0.1^(2/3))*(0.25^(1/2)))/11.96.

FAQ

What is Manning's Coefficient given Velocity of Flow?

The Manning's Coefficient given Velocity of Flow is defined as the value of Manning's coefficient when we have prior information of velocity of flow and other parameters used and is represented as n = ((R_h^(2/3))*(S^(1/2)))/v_f or Manning Coefficient = ((Hydraulic Radius^(2/3))*(Hydraulic Gradient^(1/2)))/Flow Velocity. Hydraulic Radius, in fluid mechanics, is the cross-sectional area of an open channel or pipe divided by the wetted perimeter, Hydraulic Gradient is a specific measurement of liquid pressure above a vertical datum & Flow Velocity refers to the speed at which a fluid, such as a liquid or gas, moves through a particular area within a given time.

How to calculate Manning's Coefficient given Velocity of Flow?

The Manning's Coefficient given Velocity of Flow is defined as the value of Manning's coefficient when we have prior information of velocity of flow and other parameters used is calculated using Manning Coefficient = ((Hydraulic Radius^(2/3))*(Hydraulic Gradient^(1/2)))/Flow Velocity. To calculate Manning's Coefficient given Velocity of Flow, you need Hydraulic Radius (R_h), Hydraulic Gradient (S) & Flow Velocity (v_f). With our tool, you need to enter the respective value for Hydraulic Radius, Hydraulic Gradient & Flow Velocity and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Manning Coefficient?

In this formula, Manning Coefficient uses Hydraulic Radius, Hydraulic Gradient & Flow Velocity. We can use 3 other way(s) to calculate the same, which is/are as follows -

Manning Coefficient = (0.397/Flow Velocity)*(Diameter of Pipe^(2/3))*(Hydraulic Gradient^(1/2))
Manning Coefficient = sqrt((Head Loss*0.157*Diameter of Pipe^(4/3))/(Pipe Length*Flow Velocity^2))
Manning Coefficient = sqrt((Head Loss*0.157*(2*Pipe Radius)^(4/3))/(Pipe Length*Flow Velocity^2))

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